Stationary object detection method for use with scanning radar
US6765523B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jul 24, 2002 |
| Grant date | Jul 20, 2004 |
| Priority date | — |
| Expiry date | Dec 27, 2022 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S2013/93271
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A stationary object detection method for a scanning radar wherein, of peaks generated based on a radar signal reflected from a target, peaks having substantially the same frequency are grouped together, and a decision is made as to whether or not the frequency of the grouped peaks is equal to/higher than a predetermined value, and wherein if the peak frequency is equal to or higher than the predetermined value, then a decision is made as to whether or not the number of grouped peaks is equal to or greater than a predetermined number and, if the number of peaks is equal to or greater than the predetermined number, it is decided that the target is an overhead bridge candidate or an overhead bridge. Further, pairing is applied to peaks signals obtained from the target determined as the overhead bridge candidate, to detect a relative velocity with respect to the target, and if the relative velocity is substantially equal to the speed of a vehicle equipped with the radar, it is decided that the target is an overhead bridge.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.